On the morning of October 15, 2013, the BICES 2013 exhibition grandly opened at Jiuhua Resort in Beijing. International leading construction machinery giant CSR also brought multiple products to the exhibition. The TR400D-II rotary drilling rig is one of the exhibits displayed by CSR this time. The TR400D-II rotary drilling rig is a large-scale rotary drilling rig newly launched by Beijing CSR Times, a subsidiary of CSR, in 2013.

 

　　To meet customers' construction requirements in different regions, the TR400D-II rotary drilling rig applies unique patented technology and is designed as a multifunctional rotary drilling rig with "one machine, dual working conditions." In deep pile construction, the TR400D-II rotary drilling rig has a working height of 28.5 meters and a maximum hole depth of up to 110 meters. In shallow pile construction such as rock socketing, the TR400D-II rotary drilling rig has a working height of 23.5 meters and a maximum hole depth of 85 meters. In shallow pile construction, the overall weight of the machine is greatly reduced, resulting in higher stability, greater crowd force, better economy, and higher construction efficiency.

 

　　The TR400D-II rotary drilling rig has a rotary drive output torque of 420 kNm, and the variable control of the rotary drive motor allows you to efficiently handle various working conditions.

 

　　Variable control of the main winch motor. The TR400D-II rotary drilling rig can automatically detect the load on the main winch and automatically adjust the motor displacement according to the load, effectively improving the drilling rig's working efficiency while ensuring construction safety.

 

　　The TR400D-II rotary drilling rig has a ground contact protection function. When the main winch wire rope is rapidly lowered and the drilling bucket reaches the bottom of the hole, the hydraulic system receives a control signal and automatically cuts off the oil circuit of the main winch motor, preventing rope tangling caused by excessive lowering of the main winch.

 

　　The ground-support cylinder design of the TR400D-II rotary drilling rig allows you to easily solve the problem of pulling and inserting casing.

 

　　Caterpillar chassis. The TR400D-II rotary drilling rig uses an originally imported Caterpillar chassis, whose high stability and high working efficiency ensure that the drilling rig can work with ease under any circumstances.

 

　　Basic parameters:

 

　　Maximum output torque (kNm) 　　420

 

　　Maximum drilling depth (m)　　110

 

　　Maximum drilling diameter (mm)　　3000

 

　　Engine manufacturer　　Caterpillar

 

　　Engine model　　C-15 electronic fuel injection

 

　　Engine power (kW)　　355

 

　　Engine speed (rpm)　　1800

 

　　Chassis model　　CAT374D

 

　　Total chassis length (mm)　　6860

 

　　Track width (mm)　　1000

 

　　Tractive force (kN)　　896

 

　　Drilling rotation speed (rpm)　　6–21

 

　　Maximum crowd force (kN) 　440

 

　　Maximum pull-up force (kN)　　440

 

　　Crowd system stroke (mm)　　13000

 

　　Mast left/right tilt angle (°)　　6

 

　　Mast backward tilt angle (°)　　12

 

　　Main winch lifting force (first layer) (kN)　　400

 

　　Main winch rope diameter (mm)　　40

 

　　Main winch lifting speed (m/min)　　49

 

　　Auxiliary winch lifting force (first layer) (kN)　　120

 

　　Auxiliary winch rope diameter (mm)　　20

 

　　Auxiliary winch lifting speed (m/min)　　72

 

　　Equipment width in working condition (mm)　　5500

 

　　Equipment height in working condition (mm)　　28645

 

　　Equipment length in transport condition (mm)　　8600

 

　　Equipment width in transport condition (mm)　　3900

 

　　Equipment height in transport condition (mm)　　3480

 

　　Standard drill pipe specifications　　Ф580-6*20.3 friction type; Ф580-4*20 mechanical locking type

 

　　Total weight (including drill pipe) (t)　　130

 

　　Total weight (excluding drill pipe) (t)　　105